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We present observations towards one of the closest regions of high mass star formation, Orion BN/KL, performed at both low resolution mode (grating mode) and high resolution mode (Fabry-Perot) with the Long Wavelength Spectrometer on board…

Astrophysics · Physics 2007-05-23 S. Maret , E. Caux , J. P. Baluteau , C. Ceccarelli , C. Gry , C. Vastel

We report on sensitive far-infrared observations of $^{12}$CO pure rotational transitions in the OMC-1 core of Orion. The lines were observed with the Long Wavelength Spectrometer (LWS) in the grating mode on board the Infrared Space…

We present chemical and radiative transfer models for the many far-IR ortho- and para-H2O lines that were observed from the Orion-KL region in high resolution Fabry-Perot (FP) mode by the Long Wavelength Spectrometer (LWS) on board the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 M. R. Lerate , J. A. Yates , M. J. Barlow , S. Viti , B. M. Swinyard

We have carried out a high spectral resolution line survey towards the Orion Kleinmann-Low (KL) cluster from 44-188 um. The observations were taken with the Long Wavelength Spectrometer (LWS) in Fabry-Perot mode, on board the Infrared Space…

Recent interferometric observations have called into question the traditional view of the Orion-KL region, which displays one of the most well-defined cases of chemical differentiation in a star-forming region. Previous, lower-resolution…

Astrophysics of Galaxies · Physics 2015-05-30 D. N Friedel , S. L. Widicus Weaver

We present a study of the sulfur-bearing species detected in a line confusion-limited survey towards Orion KL performed with the IRAM 30m telescope in the range 80-281 GHz. The study is part of an analysis of the line survey divided into…

Astrophysics of Galaxies · Physics 2015-06-16 G. B. Esplugues , B. Tercero , J. Cernicharo , J. R. Goicoechea , Aina Palau , N. Marcelino , T. A. Bell

We present the detection and modeling of more than 70 far-IR pure rotational lines of water vapor, including the 18O and 17O isotopologues, towards Orion KL. Observations were performed with the Long Wavelength Spectrometer Fabry-Perot…

Orion KL has served as a benchmark for spectral line searches throughout the (sub)millimeter regime. The main goal is to systematically study spectral characteristics of Orion KL in the 1.3 cm band. We carried out a spectral line survey…

Astrophysics of Galaxies · Physics 2015-09-03 Y. Gong , C. Henkel , S. Thorwirth , S. Spezzano , K. M. Menten , C. M. Walmsley , F. Wyrowski , R. Q. Mao , B. Klein

We measure H$_2$ temperatures and column densities across the Orion BN/KL explosive outflow from a set of thirteen near-IR H$_2$ rovibrational emission lines observed with the TripleSpec spectrograph on Apache Point Observatory's 3.5-meter…

Astrophysics of Galaxies · Physics 2018-04-25 Allison Youngblood , Kevin France , Adam Ginsburg , Keri Hoadley , John Bally

We investigate the physical and chemical conditions in a typical star forming region, including an unbiased search for new molecules in a spectral region previously unobserved. Due to its proximity, the Orion KL region offers a unique…

The Kleinmann-Low nebula in Orion (Orion-KL) is the nearest example of a high-mass star-forming environment. For the first time, we complemented 1.3 mm Submillimeter Array (SMA) interferometric line survey with IRAM 30 m single-dish…

Solar and Stellar Astrophysics · Physics 2016-05-04 S. Feng , H. Beuther , T. Henning , D. Semenov , Aina. Palau , E. A. C. Mills

We present a fully sampled map covering the Orion Hot Core and dense molecular ridge, in the sub-millimeter J=6-5 rotational transition of 13CO, at 0.45 mm with a resolution of 13 arcsec and 0.5 km s^-1. The map covers 3 arc min by 2arc min…

Solar and Stellar Astrophysics · Physics 2015-05-20 T. L. Wilson , D. Muders , M. Dumke , C. Henkel , Jonathan H. Kawamura

As part of the first far-IR line survey towards Orion KL, we present the detection of seven new rotationally excited OH Lambda-doublets (at 48, 65, 71, 79, 98 and 115 um). Observations were performed with the Long Wavelength Spectrometer…

Far-infrared continuum data from the {\it COBE}/{\it DIRBE} instrument were combined with Nagoya 4-m $\cOone$ spectral line data to infer the multiparsec-scale physical conditions in the Orion$ $A and B molecular clouds, using…

Astrophysics · Physics 2008-11-26 W. F. Wall

Using the Long Wavelength Spectrometer (LWS) onboard the Infrared Space Observatory (ISO), we have observed thermal water vapor emission from a roughly circular field of view approximately 75 arc seconds in diameter centered on the Orion…

Astrophysics · Physics 2009-10-30 Martin Harwit , David A. Neufeld , Gary J. Melnick , Michael J. Kaufman

Determining temperatures in molecular clouds from ratios of CO rotational lines or from ratios of continuum emission in different wavelength bands suffers from reduced temperature sensitivity in the high-temperature limit. In theory, the…

Astrophysics · Physics 2008-11-26 W. F. Wall

The Orion Kleinmann-Low nebula (Orion KL) is notoriously complex and exhibits a range of physical and chemical components. We conducted high angular resolution (sub-arcsecond) observations of $^13$CH$_{3}$OH $\nu=0$…

Astrophysics of Galaxies · Physics 2022-01-12 Olivia H. Wilkins , P. Brandon Carroll , Geoffrey A. Blake

Images of an 8 square minute region around the Orion KL source have been made in the J=7-6 (806 GHz) and J=4-3 (461 GHz) lines of CO with angular resolutions of 13" and 18". These data were taken employing on-the-fly mapping and position…

Astrophysics · Physics 2009-11-06 T. L. Wilson , D. Muders , C. Kramer , C. Henkel

We present far-IR (57-196 mu) spectra of 21 protostars in the Orion molecular clouds, obtained with the Photodetector Array Camera and Spectrometer (PACS) onboard the Herschel Space observatory, as part of the Herschel Orion Protostar…

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